<?php

/**
 * LoginForm class.
 * LoginForm is the data structure for keeping
 * user login form data. It is used by the 'login' action of 'SiteController'.
 */
class LoginForm extends CFormModel {
    public $username;
    public $password;
    public $rememberMe;
    public $verifyCode;
    private $_identity;

    /**
     * Declares the validation rules.
     * The rules state that username and password are required,
     * and password needs to be authenticated.
     */
    public function rules() {
        return array(
                // username and password are required
                array('username, password', 'required'),
                // rememberMe needs to be a boolean
                array('rememberMe', 'boolean'),
                // password needs to be authenticated
                array('password', 'authenticate'),
                // verifyCode needs to be entered correctly
                array('verifyCode', 'captcha', 'allowEmpty'=>!extension_loaded('gd')),
        );
    }

    /**
     * Declares attribute labels.
     */
    public function attributeLabels() {
        return Common::loadMessages("BackEnd");
    }

    /**
     * Authenticates the password.
     * This is the 'authenticate' validator as declared in rules().
     */
    public function authenticate($attribute,$params) {
        if(!$this->getError('username')){
            $checkEmail = AdminUser::model()->findByAttributes(array('username'=>$this->username));
            if($checkEmail->status == AdminUser::STATUS_INACTIVED)
                $this->addError('username',Yii::t('Global', 'Your accounr was locked. Please contact with administrator to be helped.!'));
            elseif($checkEmail)
            {
                $this->_identity=new UserIdentity($this->username,$this->password);
                if(!$this->_identity->authenticate())
                    $this->addError('password', Yii::t('BackEnd','Password is incorrect!'));
            }
            else
            {
                $this->addError('username',Yii::t('BackEnd', 'The username is incorrect!'));
            }
        }

        
    }

    /**
     * Logs in the user using the given username and password in the model.
     * @return boolean whether login is successful
     */
    public function login() {
        if($this->_identity===null) {
            $this->_identity=new UserIdentity($this->username,$this->password);
            $this->_identity->authenticate();
        }
        if($this->_identity->errorCode===UserIdentity::ERROR_NONE) {
            $duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
            Yii::app()->user->login($this->_identity,$duration);
            return true;
        }
        else
            return false;
    }
}
